Collapsible tube container



F. E. FARNUM Nov. 3, 1925. 1,559,565

COLLAPSIBLE TUBE CONTAINER Filed July 7, 1925 Patent ed'Nov.3,1925. V

UNITED STATES To all whom it may concern:

Be it known that 1, men, E, Fanm, a citizen of the United 'States,'and resident-of Boston, in the county of Suffolk, State of usetts, have mvented certain new and useful Improvements in Oollapsi ble Tube Containers, of which the "following is' a specification.

This invention relates to containers for paste and like substances and is intended to provide a simple, inex naive and durable device for seal the tu and e g the contents so constructed that it oes not interfere with packing the tubes in the usual cartons. e

It has been the practice heretofore to seal the tubes with an elongated sealin strip folded alo a medial line and clamp over the flatten d end of the tube, the contents being expelled by compressing the body of the tube. It has been proposed to provide means for rolling up the tube from its sealed end using the seahng strip as the axis of such movement and providing it either with a separate slotted key or wit an outwardly pro ect' extension that is an integral part of te strip. In either case, however, the rejecting finger grip or handle interferes inserting the tube in. its carton which is usually made as small as will-permit the insertion of the tube.

The present improvement rovides the sealing strip with a pivotal y connected er grip or handle thereby permittin the handle to be folded u against the si e of the tube when inserte in the carton while allowin it to swing outwardly in convenient an effective osition to function on a twisting handle w en the container is removed from the carton for use.

This andother features of the invention will be described in the following specification and will be defined in the claims hereto annexed.

In the accomp ying drawings, I have illustrated a simple an' convenient embodiment of my invention, in which Fig. 1 is a side elevation of a com lete container showing the expelling han e. in extended position for use.

Fig. 2 is a similar view showing the handle in its folded or idle position for packing in the carton.

'3 shows a crossesection through the Fi sealed end of the tube.

Fig. 4 is a detail showing the form of the collapsible tube preferably in the form of a wire loop rarsnrorslcs. nnnmcxr. not, or nos'ron, lrassacnusarra- Application an m 7, 1m. s m Io. 41,901..

sealing strip before it is folded and applied to the tube.

Fig. 5 is an enlarged cross-section through the sealed end of the tube showing the strip and the handle in. assembled position on the tube, taken at right angles to the sectional view of Fig. 3. A

Following the usual practice the. tube/1 forming the body of the container is provided at its delivery end with a screw cap or closure 2, and at its filling and sealing end 1s flattened to bring the opposing end edges 1 into close contact.

The sealing member 3 conggrises an elongated strlp of thin folded eet metal the length of whose body substantially corre" sponds to the length of the flattened ed e portionl of the tube so that it may folded around and clam upon the exter1or surfaces of the on edge portion by doubhng along its medial line into a V- shaped cross-section. The strip may be provided with the usual indents 5 to force the slots 4 to form an interlocked engagement for effectively sealing the end of the tube.

'In the present form of the improvement the sealing strip or member is formed with an integra tongue or extension 6 projectin from one end or about half the width 0 the strip and this to e forms the means for attaching a twistln handle 7 which may be made of any suitable form or material to permit the insertion of the tongue 6 throng an interior opening so that the tongue when inserted may be doubled back on itself to 100 around the adjacent portion of the hen e.

As shown the handle or finger grip 7 is oumensioned so that in extended position it forms a stron and convenient grip or handle that fac' 'tates twisting the sealing strip to gradually roll the flattened portion of the tube on It as an axis to expel the contents of the container by compression so produced.

It will be noticed by reference to Fig. 5 that the tongue 6 when folded back around thewire7iscarriedinsidesoas tobe pinched or clam between the two folds or wings of the Z of the clamping and sealing strip and t at its looped portion forms a bearing in which the wire loop 7 is free to swing either to extended position for service as shown inFigs. 1 and 5 movement involves no or to infolded position 'as shown in Fig. 2.

It matters not how. often the twistin handle or loop .is moved back and fort from idle to extended sition since such exing of the metal which would speedil result in breaking off a twisting member t at is integral with the sealing strip. Consequently the handle will continue to function perfectly until the tube is emptied of its contents. After the rolling up of the end of the tube has begun the handle 7 swings only through a quarter turn or a little more but as this position is in the plane of the thickness of the tube there is ample room for it in the carton when in such position.

What I claim is:

1. A collapsible container for paste or the like embracing in its construction a tubular body of flexible sheet material having a discharge orifice at one end and having its opposite end edges clamped between a sealmg strip, said strip comprising an elongated blank of thin sheet metal folded along a medial line to embrace the end edge portion of the tube and being provided at one end with a pivotally attached handle. arranged to swing from infolded position-against the clamping strip to extended position to serve as a handle. v

2. A combined sealing and expelling device for a collapsibletube comprising an elongated strip of thin metal adapted to be folded along a medial line to cover and clamp the flattened end edges or the tube, and a gripping loop forming a handle pivotally attached to an endwise extension of said strip so as to'swing inward against the clampin strip and outward beyond the tube, to faci itate ex ulsion of the contents by twisting. the ban le. 4

3. A combined sealing and expelling device for a collapsible tube comprising an elongated strip dimensioned to be folded over and cover the flattened end portion of the tube, and having an endwise extension, a handle formed with an interior opening dimensioned to permit said extension of the strip to be passed through and double back on itself whereby the :handle is pivotally attached to the sealing strip to be swung inward to position for packing or outward to form a member for rolling the end of the tube about'the sealing strip to expel the contents.

i. A combined sealing and expelling device for a collapsible tube embracing an elongated strip of thin metal doubled upon I itself along a medial line to tightlyembrace and seal the flattened end of the tube, a wire loop, a tongue extending from one end of the strip through said wire loop and folded back to lie between the doubled portion of the strip, whereby the loop is pivotally secured to the strip so that it may be folded back thereon'or form an extension convenient to be grasped and twisted to expel the content of the tube.

In witness whereof, I have subscribedthe' above specification.

FREDERlCK E. FARNUMO 

